混流式水轮机转轮叶片的制造方法一直沿用铸造、铲磨及立体样板检查的传统工艺，其缺点是叶片型线、厚度、重量及精度等难以保证，而且生产周期长、劳动强度大、噪声和污染严重。为了解决这些问题，国外厂家多数已经采用数控加工和钢板模压新工艺。在国内，哈尔滨大电机研究所 The manufacturing method of Francis turbine runner blades has been using the traditional process of casting, shovel grinding and three-dimensional sample inspection. The disadvantage is that it is difficult to guarantee the blade profile, thickness, weight and precision, and the production cycle is long, the labor intensity is large, the noise and serious pollution. In order to solve these problems, most foreign manufacturers have adopted CNC machining and steel molding new technology. In China, Harbin Institute of large motor